Here is a simple Arduino Camping Light project. In this design ... This part number (and ofcourse the LED type) is not very critical. If you want to use a bi-polar transistor, don’t forget to add a ...

Patrick explains more about his latest hardware creation and its features : Meet the Arduino Compatible RFID Reader Module ... the blue LED will light up for one second, then turn off.

The cathodes were bent perpendicularly and forms columns of 16 LED’s. This way, if power is applied to one row and a single column is grounded, one LED will light ... to use an Arduino to ...